MK2059-01 查看數據表（PDF） - Integrated Circuit Systems
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MK2059-01 Datasheet PDF : 10 Pages
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MK2059-01
VCXO-Based Frame Clock Frequency Translator
Pin Assignment
X1 1
VDD 2
VDD 3
VDD 4
VIN 5
GND 6
GND 7
GND 8
CHGP 9
ISET 10
20 X2
19 GND
18 ISEL
17 ICLK1
16 ICLK2
15 SEL0
14 CLK
13 NC
12 SEL1
11 SEL2
20 pin 300 mil SOIC
Pin Descriptions
Output Clock Selection Table
Input SEL2 SEL1 SEL0
8 kHz 0
0
0
8 kHz 0
0
1
8 kHz 0
1
0
8 kHz 0
1
1
8 kHz M
0
0
8 kHz M
0
1
8 kHz M
1
0
8 kHz M
1
1
8 kHz 1
0
0
8 kHz 1
0
1
8 kHz 1
1
0
8 kHz 1
1
1
Output
Clock
(MHz)
1.544
2.048
16.384
17.664
18.528
20.00
25.00
25.92
19.44
20.48
24.704
24.576
Crystal
Used (MHz)
24.704
24.576
16.384
17.664
18.528
20.00
25.00
25.92
19.44
20.48
24.704
24.576
Note: For SEL input pin programming:
0 = GND, 1 = VDD, M = Floating
Pin
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Pin
Name
X1
VDD
VDD
VDD
VIN
GND
GND
GND
CHGP
ISET
SEL2
SEL1
NC
CLK
SEL0
ICLK2
ICLK1
ISEL
GND
X2
Pin
Type
-
Power
Power
Power
Input
Power
Power
Power
Output
-
Input
Input
Input
Output
Input
Input
Input
Input
Power
-
Pin Description
Crystal Input. Connect this pin to the specified crystal.
Power Supply. Connect to +3.3V.
Power Supply. Connect to +3.3V.
Power Supply. Connect to +3.3V.
VCXO Control Voltage Input. Connect this pin to CHGP pin and the external
loop filter as shown in this data sheet.
Connect to ground
Connect to ground
Connect to ground
Charge Pump Output. Connect this pin to the external loop filter and to pin
VIN.
Charge pump current setting node, connection for setting resistor.
Output Frequency Selection Pin 2. Determines output frequency as per table
above. Internally biased to VDD/2.
Output Frequency Selection Pin 1. Determines output frequency as per table
above. Internal pull-up.
No Internal Connection.
Clock Output
Output Frequency Selection Pin 0. Determines output frequency as per table
above. Internal pull-up.
Input Clock Connection 2. Connect an input reference clock to this pin. If
unused, connect to ground.
Input Clock Connection 1. Connect an input reference clock to this pin. If
unused, connect to ground.
Input Selection. Used to select which reference input clock is active. Low input
level selects ICLK1, high input level selects ICLK2. Internal pull-up.
Connect to ground.
Crystal Output. Connect this pin to the specified crystal.
MDS 2059-01 B
2
Revision 071001
Integrated Circuit Systems, Inc. q 525 Race Street, San Jose, CA 95126 q tel (408) 295-9800 q www.icst.com
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